| 光学相干层析系统噪音分析(Ⅱ)——时域OCT和频域OCT |
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| 引用本文： | 朱晓农,毛幼馨,梁艳梅,贾亚青,母国光.光学相干层析系统噪音分析(Ⅱ)——时域OCT和频域OCT[J].光子学报,2007,36(3):457-461. |
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| 作者姓名： | 朱晓农 毛幼馨 梁艳梅 贾亚青 母国光 |
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| 作者单位： | 1. 南开大学,现代光学研究所,光电信息技术科学教育部重点实验室,天津,300071
2. Medical Biophysics Department of the University of Toronto, Princess Margaret Hospital,Toronto, ON M5G 2M9, Canada |
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| 基金项目： | 科技部重大基础研究前期研究专项基金(2002CCA01700)，教育部南开大学、天津大学科技合作基金资助 |
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| 摘 要： | 本文作为前文《光学相干层析系统噪音分析(I)》的后续,对时域OCT和频域OCT的噪音和灵敏度进行了详细的分析和计算,证明与时域OCT系统不同,频域OCT系统的信噪比与光源带宽和纵向扫描深度无关,频域OCT系统可以在高速率图像采集的情况下仍然保持探测系统的大动态范围.
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| 关 键 词： | 时域OCT 频域OCT 噪音分析 灵敏度 信噪比 |
| 文章编号： | 1004-4213（2007）03-0457-5 |
| 收稿时间： | 2005-10-25 |
| 修稿时间： | 2005-10-25 |
Noise Analyses Of Optical Coherence Tomography Systems(Ⅱ)——Fourier Domain And Time Domain OCT Systems |
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| ZHU Xiao-nong,MAO You-xin,LIANG Yan-mei,JIA Ya-qing,MU Guo-guang.Noise Analyses Of Optical Coherence Tomography Systems(Ⅱ)——Fourier Domain And Time Domain OCT Systems[J].Acta Photonica Sinica,2007,36(3):457-461. |
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| Authors: | ZHU Xiao-nong MAO You-xin LIANG Yan-mei JIA Ya-qing MU Guo-guang |
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| Institution: | 1 Institute of Modern Optics, Nankai University, Key Laboratory of Opto-electronic Information Science and Technology ,Ministry of Education, Tianjin 300071 ,China;2 Medical Biophysics Department of the University of Toronto ,Princess Margaret Hospital, Toronto,ON M5G 2M9 ,Canada |
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| Abstract: | Following "Noise analyses of optical coherence tomography systems(I)",the noise and sensitivity issues involved in both time-domain and Fourier-domain OCT systems are analyzed.Detailed comparison of the main characteristics of these two types of OCT is presented.It proves that Fourier-domain OCT system can maintain a larger dynamic range even under the circumstances of high-speed image acquisition. |
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| Keywords: | Time-domain OCT Fourier domain OCT Noise analysis Sensitivity SNR |
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